Multislot card reader, SANOXY all in one USB 2.0 MEMORY CARD READER FOR SD/MS Pro Duo/micro SD/M2/SDHC SANOXY All in one USB 2.0 Memory Card Reader For SD/MS Pro Duo/micro SD/M2/SDHC USB MSSDTF Writer Hot Swappable True Plug and Play. Get Power supply via USB cable. No external power supply required. USB 2.0 Transfer rate up to 12Mbps (USB 1.1) & 480Mbps (USB 2.0) Comes with LED indicator for power status and read/write progress Supported System: Microsoft WIN98/2000/XP/ Mac os V9.2 or higher card supported.: SD/mini SD/MMC/RS-MMC/MMC 4.0/RS-MMC 4.0/MS/MS Pro/MS DUO/MS Pro DUO/MMC Micro/Micro SD/M2(MS Micro)